Epson EPL-5500W User manual

EPSON TERMINAL PRINTER

EPL-5500W

SERVICE MANUAL

EPSON 4005668

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NOTICE

EPSON’s express written permission is forbidden.

The contents of this manual are subjects to change without notice.

All efforts have been made to ensure the accuracy of the contents of this manual. However, should any

errors be detected, SEIKO EPSON would greatly appreciate being informed of them.

The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this manual or

the consequence thereof.

Epson is a registered trademark of Seiko Epson Corporation.

GeneralNotice: Other product names used herein are for identication purposes only and may be trademarks

of their respective campanies.

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PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to

equipment.

DANGER

Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great

caution should be exercised in performing procedures preceded by DANGER Headings.

WARNING

Signals a precaution which, if ignored, could result in damage to equipment.

The precautionary measures itemized below should always be observed when performing repair/ mainte-

nance procedures.

DANGER

1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND PERI-

PHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURE.

2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH

BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN

THEIR LINE OF WORK.

3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CON-

NECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE

POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING

ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

WARNING

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTI-

FIED REPAIR TECHNICIAN.

2. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE,

LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A

PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CON-

NECT IT TO THE POWER SOURCE.

3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE

POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS

AND/OR INDIVIDUAL CHIPS.

4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC

DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING

INTERNAL COMPONENTS.

5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY

THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER NONAP-

PROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE

EPSON WARRANTY.

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SAFETY INFORMATION

This printer is a page printer which operates by means of a laser. There is no possibility of danger from the laser,

provided the printer is operated according to the instructions in this manual provided.

Since radiation emitted by the laser is completely confined within protective housings, the laser beam cannot escape

from the machine during any phase of user operation.

For United States Users;

[Laser Safety]

This printer is certified as a Class 1 Laser product under the U.S. Department of Health and

Human Services (DHHS) Radiation Performance Standard according to the Radiation Control

for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser

radiation.

[CDRH Regulations]

The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Adminis-

tration implemented regulations for laser products on August 2, 1976. Compliance is mandatory

for products marketed in the United States. The label shown below indicates compliance with

the CDRH regulations and must be attached to laser products marketed in the United States.

WARNING : Use of controls, adjustments or performance of procedures other than

those specified in this manual may result in hazardous radiation exposure.

[Internal Laser Radiation]

Maximum Radiation Power: 5.0 ×10-4 (W)

Wave Length: 790 ±20 nm

This is a Class IIIb Laser Diode Assay that has an invisible laser beam. The print head unit is

NOT A FIELD SERVICE ITEM. Therefore, the print head unit should not be opened under any

circumstances.

For Other Countries Users;

WARNING: Use of controls, adjustments or performance of procedures other than

those specified in this manual may result in hazardous radiation exposure.

This is a semiconductor laser. The maximum power of the laser diode is 5.0 ×10-4

W and the wavelength is 790 ±20 nm.

For Denmark Users;

ADVARSEL

Usynlig laserstråling ved åbning, når sikkerhedsafbrydere er ude af funktion. Undgå

udsættelse for stråling.

Klasse 1 laser produkt der opfylder IEC825 sikkerheds kravene.

For Finland, Sweden Users;

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VAROITUS

Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altis-

taa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteiylle.

VARNING

Om apparaten används på annat sätt än i denna bruksanvisning specificerats, kan

användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laser klass

For Finland, Sweden Service People

VAROITUS

Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle laser-säteilylle. Älä

katso säteeseen.

VARNING

Osynlig laserstrålning när denna del är öppnad och spärren är urkopplad. Betrakta ej

strålen.

For Norway Users;

ADVARSEL

Dersom apparatet brukes på annen måte enn spesifisert i denne bruksanvisning, kan

brukeren utsettes for unsynlig laserstråling som overskrider grensen for laser klasse 1.

Dette er en halvleder laser. Maksimal effeckt til laserdiode er 5.0 ×10-4 Wog

bølgelengde er 790 ±20 nm.

Laser Safety Labels

[Label on rear printer case]

A laser safety labels is attached on the outside of the printer shown below.

For United State

For Europe

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[Label inside printer]

The following laser safety label will be attached inside the printer as shown below.

For Denmark, Finland, Sweden, and Norway

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PREFACE

This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of

EPL-5500W.

The instructions and procedures included herein are intended for the experience repair technician, and attention

should be given to the precautions on the preceding page. The chapters are organized as follows:

CHAPTER 1. GENERAL DESCRIPTION

Provides a general product overview, lists specifications, and illustrates the main components of the printer.

CHAPTER 2. OPERATING PRINCIPLES

Describes the theory of printer operation.

CHAPTER 3. DISASSEMBLY AND ASSEMBLY

Includes a step-by-step guide for product disassembly and assembly.

CHAPTER 4. ADJUSTMENTS

Includes a step-by-step guide for adjustment.

CHAPTER 5. TROUBLESHOOTING

Provides Epson-approved techniques for adjustment.

CHAPTER 6. MAINTENANCE

Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.

APPENDIX

Describes connector pin assignments, circuit diagrams, circuit board component layout and exploded diagram.

The contents of this manual are subject to change without notice.

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REVISION SHEET

Revision Issue Date Revision Page

Rev. A November 24, 1995 1st issue

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TABLE OF CONTENTS

CHAPTER 1. GENERAL DESCRIPTION

CHAPTER 2. OPERATING PRINCIPLES

CHAPTER 3. DISASSEMBLY AND ASSEMBLY

CHAPTER 4. ADJUSTMENTS

CHAPTER 5. TROUBLESHOOTING

CHAPTER 6. MAINTENANCE

APPENDIX

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Table of contents

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